Because many people asked here a quick solution how to map the whole matrix to a strip:
/*
* Copyright (C) 2013 Gilad Dayagi. All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*/
/*
* An example for the Arduino particle system library
* Creates a spinning galaxy effect
*
* Note: this example uses the colorduino library becuse that is what I had,
* but any device that supports setting a pixel to an RGB value can be used
*/
//#include <Colorduino.h>
#include <FastSPI_LED2.h>
#include "ParticleSys.h"
#include "Particle_Bounce.h"
#include "Emitter_Spin.h"
#include "PartMatrix.h"
#define NUM_LEDS 240
CRGB leds[NUM_LEDS];
const byte numParticles = 600;
Particle_Bounce particles[numParticles];
Emitter_Spin emitter(112, 112, 5, 7);
ParticleSys pSys(numParticles, particles, &emitter);
PartMatrix pMatrix;
/**
* Render the particles into a low-resolution matrix
*/
void drawMatrix(){
pMatrix.fade();
pMatrix.render(particles, numParticles);
//update the actual LED matrix
for (byte y=0;y<8;y++) {
for(byte x=0;x<8;x++) {
//Colorduino.SetPixel(x, y, pMatrix.matrix[x][y].r, pMatrix.matrix[x][y].g, pMatrix.matrix[x][y].b);
leds[40+(x*2)+y*20].r = pMatrix.matrix[x][y].r;
leds[41+(x*2)+y*20].r = pMatrix.matrix[x][y].r;
leds[40+(x*2)+y*20].g = pMatrix.matrix[x][y].g;
leds[41+(x*2)+y*20].g = pMatrix.matrix[x][y].g;
leds[40+(x*2)+y*20].b = pMatrix.matrix[x][y].b;
leds[41+(x*2)+y*20].b = pMatrix.matrix[x][y].b;
}
}
}
void setup()
{
//Colorduino.Init(); // initialize the board
FastLED.addLeds<WS2812, 6, GRB>(leds, NUM_LEDS);
// compensate for relative intensity differences in R/G/B brightness
// array of 6-bit base values for RGB (0~63)
// whiteBalVal[0]=red
// whiteBalVal[1]=green
// whiteBalVal[2]=blue
byte whiteBalVal[3] = {36,63,7}; // for LEDSEE 6x6cm round matrix
//Colorduino.SetWhiteBal(whiteBalVal);
randomSeed(analogRead(0));
pMatrix.reset();
//Colorduino.FlipPage(); // swap screen buffers to show it
emitter.oscilate = true;
}
void loop()
{
pSys.update();
drawMatrix();
//Colorduino.FlipPage();
FastSPI_LED.show();
delay(5);
}